Synthesis, structure and surface photo-electric property of Ni(II) complexes

► In the synthesis complex 3, the ligands react addition reaction between each other. ► SPS results indicate complexes possess obvious photoelectric conversion ability. ► The dimensionality of complex, coordination environment of Ni(II) ion affect SPS. ► Hydrogen bond is also helpful for the transfer of electrons or holes. ► Energy-band theory and crystal field theory are used to analyze and contrast SPS.